/*!
 * Bootstrap Grunt task for generating raw-files.min.js for the Customizer
 * https://getbootstrap.com/
 * Copyright 2014-2019 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */

'use strict';

var fs = require('fs');
var btoa = require('btoa');
var glob = require('glob');

function getFiles(type) {
    var files = {};
    var recursive = type === 'less';
    var globExpr = recursive ? '/**/*' : '/*';
    glob.sync(type + globExpr)
        .filter(function (path) {
            return type === 'fonts' ? true : new RegExp('\\.' + type + '$').test(path);
        })
        .forEach(function (fullPath) {
            var relativePath = fullPath.replace(/^[^/]+\//, '');
            files[relativePath] = type === 'fonts' ? btoa(fs.readFileSync(fullPath)) : fs.readFileSync(fullPath, 'utf8');
        });
    return 'var __' + type + ' = ' + JSON.stringify(files) + '\n';
}

module.exports = function generateRawFilesJs(grunt, banner) {
    if (!banner) {
        banner = '';
    }
    var dirs = ['js', 'less', 'fonts'];
    var files = banner + dirs.map(getFiles).reduce(function (combined, file) {
        return combined + file;
    }, '');
    var rawFilesJs = 'docs/assets/js/raw-files.min.js';
    try {
        fs.writeFileSync(rawFilesJs, files);
    } catch (err) {
        grunt.fail.warn(err);
    }
    grunt.log.writeln('File ' + rawFilesJs.cyan + ' created.');
};
